If \(\frac{3}{7}\) of a pizza is eaten for lunch and \(\frac{2}{5}\) is eaten for dinner, how much of the pizza is eaten?

Ok so we need to start by getting both of these denominators into the same number. We must keep a constant ratio.
for this denominator, let use 35 because we know it works and its the least common multiple.
Since we multiply the bottom of the first fraction by 5, we must multiply the top the same way. This makes it 15/35.
The second one gets multiplied by 7, making it 14/35.
Let's now add up our fractions, getting us 29/35. We would simplify, but the answer is already in the most simple form.
Final answer: 29/35 has been eaten, 6/35 is left over.

Answered by ColeRees | 2024-06-10

3/7 for lunch 2/5 for dinner firstly u add both fractions for lunch and dinner then subtract it from one that will be 3/7 + 2/5 now u find the lcm that will be 35 then add 7 into 35 times the numerator do it to the both u will have 15+14/35=29/25 =0.82857142857

Answered by ebresafeyoma | 2024-06-10

The total amount of pizza eaten for lunch and dinner is 35 29 ​ . This means that approximately 83% of the pizza was consumed. There remains 35 6 ​ of the pizza left over.
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Answered by ColeRees | 2024-08-31